<sect1 id="other-gui-start">
	<title>The Elements of the Gnumeric Worksheet.</title>
	
	<para>The Gnumeric worksheet is made up of three elements which are presented 
	below. <xref
	linkend="data-entry"> explains the use of the Data entry area, the area
	immediately above the worksheet area. <xref linkend="cell-grid"> explains
	the cell grid which is the area in the middle of the window and the area
	users spend the most time editing. Finally, <xref linkend="info-area">
	explains the information area at the bottom of the worksheet where Gnumeric
	displays information about its current work. </para>

</sect1>



<sect1 id="data-entry">
    <title>Data entry area.</title>
    
    <para>Immediately above the grid of cells is the data entry
      area as shown in <xref linkend="worksheet-data-1">.</para>
	  <figure id="worksheet-data-1">
   	   <title>The Data Entry area.</title>
   	   <screenshot>
		<graphic fileref="figures/worksheet-data-1.png" format="png"></graphic>
      </screenshot>
    </figure>
    <para>This is a small area, which contains a current cell
    indicator, a <guibutton>cancel</guibutton> button, a 
	<guibutton>confirm</guibutton> button, an
	<guibutton>entry</guibutton> button, and an entry area for
    detailed editing of the cell contents. These elements are explained
	individually below.
	</para>
    


	
    <sect2>
      <title>Current Cell Indicator.</title>
	  
      <para>On the far left of the Data Entry area is the current cell indicator
	area.  This area is shown in <xref linkend="worksheet-data-2"></para>
      <figure id="worksheet-data-2">
	<title>The Current Cell Indicator.</title>
	<screenshot>
	  <graphic fileref="figures/worksheet-data-2.png" format="png"></graphic>
	</screenshot>
      </figure>
		<para>The cell indicator will show the address for the cell at the top
	left of the selected region. This address is listed in the standard column:row 
	notation. The alphabetic part indicates the the column of this top leftmost cell 
	and the numeric part indicates the row of this top left cell. For instance, the 
	cell which is over three columns and down two rows is designated:</para>
		<blockquote><para>C2</para></blockquote>
	<para>This designation matches the column and row headers for this
	cell.</para>

	<para>While a region is being selected, the current cell indicator will
	change to show the size of the region which is being selected. This
	information is presented in a row number by column number format. For
	instance, this designation:
      
      <blockquote><para>15R x 6C</para></blockquote>
      
      would indicate a selection area 15 rows high by 6 columns wide. Once 
	  the mouse is released at the end of the selection, the current cell indicator 
	  goes back to giving the address of the single top leftmost cell.</para>
      
    </sect2>
    

    
    <sect2>
      <title>The <guibutton>Cancel</guibutton> Button.</title>
      
      <para>The Cancel button 
	  <guibutton>
	  <inlinegraphic fileref="figures/worksheet-data-4.png">
	  </inlinegraphic>
	</guibutton>
	can be used to cancel the current edit and to restore the cell contents to
	the previous state.
	If a user decides in the middle of an edit that the data being entered into a cell is
	not what they want, the user can push this cancel button to cancel the current
	data and return the cell to the state it was at before. </para>
      
      <para>The most common use of this button is when overwriting the contents
	of a cell with new data. If the user decided to revert the change
	before confirming it, the cancel button is the answer. Note that this 
	button works just like typing the escape key on the keyboard.</para>
    </sect2>

	
    <sect2>
      <title>The <guibutton>Confirm</guibutton> Button.</title>
      
      <para>The confirm button
	  <guibutton>
	  <inlinegraphic fileref="figures/worksheet-data-3.png" format="png">
	  </inlinegraphic>
	</guibutton>.
      can be used to finish the edit of a cell and enter the edit into the
	  workbook. Note that this  button works in the same way as the enter key.
	  </para>

    </sect2>
	
	
	<sect2>
      <title>The <guibutton>Equals</guibutton> Button.</title>
      
      <para>The equals button 
		<guibutton>
		  <inlinegraphic fileref="figures/button-equals.png" format="png">
		  </inlinegraphic>
		</guibutton>
	  can be used to start a formula in the currently selected cell. If a user
	  wanted to make cell D10 equal to cell B4, the user could simply click on
	  cell D10, click this equals button, click on cell B4 and type the enter
	  key. Note that this button works the same way as the equals key.
      </para>
      
    </sect2>



</sect1>









  
<sect1 id="cell-grid">
    <title>The Cell Grid</title>
      
    <para>Most of the work done on a spreadsheet is done to the main Cell area, the large
      grid like part of the worksheet. This is where all the formulas and data are entered,
      and is the center of activity for the spreadsheet.</para>

    <figure id="cell-grid.png">
      <title>The Cell Grid area, with cells of different sizes.</title>
      <screenshot>
	<graphic fileref="figures/cell-grid.png" format="png"></graphic>
      </screenshot>
    </figure>
 
 	<para><xref linkend="cell-grid.png"> shows the the 
	cell grid area, the column and row headers on the top and left, the
	scrollbars on the right and bottom and the tab list at the very bottom.
	</para>
	
	<para> The figure has a few and shows that cell B3 as being 
	selected. In this figure, the columns and rows have been 
	resized and therefore look uneven. </para>
	
	<para>Each cell in this area is delimited by a light grey line by default.
	The current selection is indicated by a rectangular box with a little box
	on the lower right, this case cell J12. The view in this figure shows the
	middle portion of a worksheet which is evident in two ways. Firstly, the
	column and row headers do not start at column A and row 1. Secondly, the
	scroll thumbs are not at the top and left. The thumbs are the boxes within
	the scroll bars that are used to scroll. Note also that cell D19 has a
	comment within it which is shown by the little red triangle at the top
	right corner.</para>
	
	<para>The size of a cell is determined by the
	width of the column and height of the row that the cell is in. The columns and rows
	can be resized by acting on the header relevant to the cell. The user must move the 
	mouse pointer to the edge of the header which is either to the right or below the cell. 
	With the mouse pointer in this position, the pointer will change to a set of opposite 
	pointing arrows. The user must then drag this edge away from the top left corner. This 
	takes a little practice.</para>
	
	
	<para>The cell area is the core of Gnumeric. Therefore the maual explains the use of 
	cells in much greater detail in a separate section. Interested users should read 
	<xref linkend="editing">.</para>

	


	<sect2 id="col-row-headers">
		<title>The Column and Row Headers.</title>

    <para>The sheet is bordered by column headers on the top and row headers to the left. 
	Columns are labeled alphabetically running horizontally across the top of the sheet as 
	shown in <xref linkend="worksheet-cols-1">.     
    <figure id="worksheet-cols-1">
      <title>The column labels at the top of the worksheet.</title>
      <screenshot>
	<graphic fileref="figures/worksheet-cols-1.png" format="png"></graphic>
      </screenshot>
    </figure>
	Rows are labeled along the left side of the worksheet. Each label is a differrent integer
	increasing downward. This is shown in <xref linkend="worksheet-rows-1">.
    
    <figure id="worksheet-rows-1">
      <title>The row labels at the left side of the worksheet.</title>
      <screenshot>
	<graphic fileref="figures/worksheet-rows-1.png" format="png"></graphic>
      </screenshot>
    </figure>
    </para>

	</sect2>

	<sect2>
		<title>The Scrollbars</title>

		<para>
		The cell grid area's scrollbars work like other scrollbars. In this
		case they let the user work on a worksheet which is much bigger than
		what could be shown at any given momment.
		</para>

		</sect2>

 <sect2>
      <title>The Tabbed Sheet Indicator</title>
      <para>At the bottom of <xref linkend="cell-grid.png">, Gnumeric has a tabbed sheet 
	  indicator. This is the boxes with the labels "Guppies", "Turtles", "Mermaids", 
	  "seahorses" and so on. In workbooks where there are more than one sheet, extra 
	  tabs are used to indicate how many sheets are there, and also allows the user to move 
	  to another sheet by clicking the proper tab. Each 
	  tab is a link to a separte worksheet within Gnumeric. In this figure, the "Turtles" tab 
	  has been selected. Gnumeric shows this by making the "Turtles" since the tab is a 
	  little bigger and making it overlap the two neighbouring tabs.</para>
	  
	  <para>On the far
	  right, the two arrows indicate that there are more sheets in the workbook
	  and more tabs for those sheets. Unfortunately, there is not enough space
	  to show them all so Gnumeric displays these arrows. If all the sheets are
	  visible, these arrows will not be displayed. These arrows can be used to
	  scroll the tabs and bring tabs that were hidden into view. This may be a
	  little difficult to understand and work with but becomes easier quickly.</para>
    </sect2>
    




    
</sect1>
 








<sect1 id="info-area">
    <title>The Information Area</title>
    
    <para>The section at the very bottom of the worksheet view is the information area 
	as is shown in <xref linkend="info-area.png">.

	<figure id="info-area.png">
      <title>The Information Display Area.</title>
    	  <screenshot>
			<graphic fileref="figures/info-area.png" format="png"></graphic>
    	  </screenshot>
   	 </figure>
    The information area displays information depending on what is happening in
	Gnumeric. 
	</para>
	
	<sect2>
		<title>The menu hint area</title>
	
	<para>
	The leftmost portion of the information display area, the part which reads: 
	"Sort the selected cells" is a
	hint explaining what a menu does. In this case, the Data menu was opened
	and the pointer is hovering above the "sort" menu entry. Gnumeric is
	responding by giving a quick explanation of what that menu entry does.
	</para>

	</sect2>

	<sect2>
		<title>The File Status Indicator</title>

		<para>
		Whenever Gnumeric opens or saves a file, the file staus indicator
		appears with a progress bar which grows as Gnumeric progresses. In
		<xref linkend="info-area.png">, Gnumeric was just over halfway done
		opening a file.
		</para>
	</sect2>



       <sect2>
      <title>The running calculation area</title>
      
      <para>In the bottom right hand corner, is an info area that shows some constantly calculated
	values. The default set is to show the Sum of all the currently selected cells.</para>
      
      <para>There is a right click option that includes a few more options.  This can include
	Sum, Min, Max, Average, Count.</para>
      
      <figure id="worksheet-running-calc-1">
	<title>The running calculation area.</title>
	<screenshot>
	  <graphic fileref="figures/worksheet-running-calc-1.png" format="png"></graphic>
	</screenshot>
      </figure>
    </sect2>
  </sect1>

<!--end of chapter Other graphical elements.-->


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